uneeds 7499 / SN74LS90N logic IC pack of 4 Electronic Components Electronic Hobby Kit

7490 IC is a decade counter which contains four master slave flip flops. It provides three stage binary counter for which the count cycle length is divide by 5 for 90A and LS90, divide by 6 for 92A and LS92, divide by 8 for 93A and LS93. The input count pulses are applied to CKA input and the outputs are as described in the appropriate function table. The other features as follow : Logic Family / Base Number: 74LS90; Counter Type: Decade; Clock Frequency: 42MHz; Count Maximum: 9; No. of Pins: 14. Supply Voltage Min: 4.75V; Supply Voltage Max: 5.25V; Logic IC Family: 74LS; Logic IC Base Number: 7490.